Sharp CD-C491H (serv.man4) Service Manual ▷ View online
– 29 –
CD-C491H
Figure 29 SCHEMATIC DIAGRAM (2/20)
7
8
9
10
11
12
• The numbers
1
to
12
are waveform numbers shown in page 57.
11
C56
0.022
Q52
KTC3203 Y
C52
100/16
R64
22
R66
330
ZD61
MTZJ4.7B
C50
0.022
L61
0.82
µ
H
R55
150
C82
47/16
R82
6.8K
D91
1SS133
R86
2.2K
R87 10K
Q93
KRC102 M
Q91
KTA1271 Y
C37 0.022
R47
10K
C53 0.022
C46
100P
R80
6.8K
Q51
KRC107 M
C25
27P
R39
1K
R81
3.9K
R41
47K
R43
56K
R44
33K
33K
R42
47K
R51
3.3M
4
.7/50
C28
0.1
R88 1K
5
0
XL1
16.934 MHz
C41
12P
(CH)
C42
15P(CH)
R93
220
D81
1SS133
D82
1SS133
C83
0.022
R54
330
R83 3.9
IC81
TA7291S
LOADING MOTOR DRIVER
R89 1K
R90 1K
R50
680
C39
0.047
C40
0.047
R52
27K
R60
1K
C26
0.033
R57 1K
R58 1K
R58 1K
R61 1K
R59 1K
C38
0.01
R63 1K
R62 1K
D4
RL104A
C57
0.001
C81
47/16
C49 100P
C48 100P
C43
330/6.3
R53 1.2K
R38
470
C23
0.0027
C22
220P
C47 100P
C45 100P
C44 100P
D1
1SS133
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
17
16
15
14
13
12
11
10
18 19 20 21 22 23
24 25 26 27 28 29 30 31
32
9
8
7
6
5
1
2
3
4
1
2
3
CNP11
CNSF11
1
2
3
1
2
3
CNS99
CNPR11
BI99
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
2
3
4
5
6
1
2
3
4
5
6
2
3
4
5
6
7
8
9
8
9
10
CNP10
1
2
2
1
2
2
BIM05
CNS5
SW3
DISC
NOMBER
SW2
MECHA UP
SW1
OPEN/
CLOSE
M
M3 T/T
UP/DOWN
LOADING
SOLENOID 2
C51
100/16
9
8
7
6
5
4
3
2
1
1 2 3 4 5 6 7 8 9
10 11 12 13 14
CNP12
NC
NC
CD2LD2M+
M–
M+
M+
SOL
CD2LD2M–
CD2D2NO
ND
+7.3V
TEST5
/CS
TA1
SOL
GND(M)
GND(M)
M+
M–
GND(D)
OPEN CLOSE
DISC NO.
GND(D)
MECHA UP
GND(D)
OPEN CLOSE
DISC NO.
GND(D)
MECHA UP
GND(D)
+
–
2Kx8
RAM
1BIT DAC
SERVO
COMMAND
TES
HLF
V/P
CLV2
CLV+
TEST2
EFMIN
EFMO
VSS
FR
VVDD
ISET
VVSS
PDO
DEF1
CLV
DIGITAL SERVO
EXTERNAL
OUTPUT
SYNC-DETECT
EFM DEMODULATE
SLICE LEVEL
CONTROL
VCO CLOCK
OSC CONTROL
ERROR COERECT
FLAG CONTROL
OUT
DIGITAL
NC
NC
NC
NC
TOFF
TGL
JP+
JP2
PCK
FSEQ
VDD
CONT1
CONT2
CONT3
CONT4
CONT5
EMPH
C2F
TEST3
DOUT
4FS
DIGITAL
FILTER
TEST1
TEST4
MUTEL
LVDD
LCHO
LVSS
RVSS
RCHO
RVDD
MUTER
XVDD
XOUT
XIN
XVSS
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
SBSY
EFLG
SUB-CODE
µ
-COM
INTERFACE
TEST11
SBCK
SFSY
PW
FSX
WRQ
RWC
SQOUT
COIN
/CQCK
/RES
16M
4M
X-TAL
GENERATOR
0V
0V
2.5V
0V
0V
0V
0V
0V
0V
0V
4.8V
2.5V
0V
4.8V
0V
0V
4.8V
4.8V
4.8V
0V
0V
0V
0V
0V
0V
0V
0V
12V
12V
0V
6.4V
1V
0V
6.5V
6.5V
6.5V
2.9V
0V
12V
0V
0V
0V
4.8V
4.5V
0V
0V
0V
2.0V
4.5V
4.8V
4.8V
2.2V
2.1V
0V
0V
2.2V
2.5V
2.5V
0V
0V
4.8V
1.9V
0V
0V
0V
0V
+12V
CD-GND
+7.3V
+B
+B
+B
+B
+B
+B
+B
+B
+B
1
2
3
+B
1
2
3
CNS10
LOCK
SENSOR PWB
+5V
+B
IC2
LC78622K
SERVO/SIGNAL
CONTROL
OP/CLOS
UP/DOWN
DISC NO.
D2GND
RES(DSP)
WRQ(DSP)
RWC(DSP)
CQ CK(DSP)
CO IN(DSP)
SQ OUT(DSP)
DRF (ASP)
SLD+
SLD–
PUIN SW
B
CD SERVO PWB-B
P30 1-C
TO MAIN PWB
P30 1-D
CNSF12
TO MAIN PWB
TO MAIN PWB
P34 2-C
VOLTAGE
REGULATOR
CD-C491H
– 30 –
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 22.
Figure 30 SCHEMATIC DIAGRAM (3/20)
DG07
1SS133
DG08
1SS133
RF66
@
1K
RF78
@
1K
RF76
@
1K
RF74
@
1K
RF73
@
1K
RF71
@
1K
RF70
@
1K
RF69
@
1K
RF68
@
1K
RF65
@
1K
RF64
@
1K
RF63
@
1K
RF62
@
100
RF61
@
1K
RF60
@
1K
RF54
@
1K
RF52
@
1K
RF51
@
1K
RF37 1K
RF38 1K
RF39 K
RF40 1K
RF44 1K
RF46 1K
RF49 1K
RF50 1K
RF36 1K
RF35 1K
RF34 1K
RF33 1K
RF32 1K
RF31 1K
RF03
1K
RF04
1K
RF05
1K
RF09 1K
RF10 1K
RF11 1K
RF12
1K
RF13 1K
RF14 1K
RF08 1K
RF07 1K
RF06 1K
RF81
1K
RF82
@
1K
RF83
@
10K
RF84
@
1K
RF85
@
1K
RF86
@
1K
RF87
@
1K
RF88
@
1K
RF91
@
1K
RF92
@
1K
RF93
@
1K
RF94
@
1K
RF95
@
1K
RF96
@
1K
RF97
@
1K
RF59
@
1K
RF58
@
1K
RG55 1K
RF79
@
10K
RF55
@
1K
RG05
10K
RF80
1K
ICF01
IX0254AW
SYSTEM CONTROL
MICROCOMPUTER
CG56
0.022
XF01
CG05
15P
CG06 15P
RF17
0.0
RG04
10K
RG08
@
10K
RG07
@
10K
RG06
@
10K
CG57
47/25
RF28
1K
RF27
@
1K
RF25
@
1K
RF24
@
10K
RF23
@
1K
RF22
@
1K
RF21
@
1K
RF20
@
1K
RF19
@
1K
RF26
@
1K
RF29 1K
RG56
@
1K
RF01
1K
RF02
1K
RF99
@
1K
RG95
470K
QG92
KTC3199 GR
RG96
10K
RG94
10K
RG24
10K
RG38
100K
RG25
@
10K
RF30
1K
RG16
47K
RG19
47K
47K
RG26
10K
RF67
@
1K
RG11
10K
RF98
@
1K
RF48 1K
RG20 10K
RG21 10K
RG22 10K
RG22 10K
RG17
10K
RG15
10K
CH29
0.022
0.022
CH28
0.022
CH15
0.22/50
RH16
470K
DH11
1SS133
CH13
330P
RH14
560K
RH15
33K
CH18
0.22/50
RH24
470K
DH12
1SS133
RH20
1.5K
CH17
0.047(ML)
RH21
560K
RH22
33K
CH16
1/50
CH21
0.22/50
DH13
1SS133
RH29
470K
RH25
1.5K
CH20
0.015
RH26
560K
RH27
33K
CH19
0.47/50
CH24
0.22/50
DH14
1SS133
RH34
470K
RH30
1.5K
CH23
0.0047
RH31
560K
CH22
0.1
(ML)
RH32
33K
CH27
0.22/50
DH15
1SS133
RH39
470K
RH35
1.5K
CH26
0.0012
RH36
560K
CH25
0.027
0.027
(ML)
RH37
33K
ICH11
NJM4558M
MOTOR DRIVER
RH11
150K
RH12
1K
CH10
47P
RH13
150K
RH17
1.5K
DH16
1SS133
DH17
1SS133
DH18
1SS133
DH19
1SS133
DH20
1SS133
RF47 1K
RF53
@
1K
CH30
0.0056
(ML)
RF75
@
1K
RF77
@
22K
RF42 1K
RF43 1K
CG08
0.001
0.001
PRE R-CH
PRE L-CH
REC R-CH
REC L-CH
GND(A)
VSS
VDD
PL4
PL0
PL1
PL2
PL3
PL3
PC2
PC3
PC1
PC0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PA6
PA5
PA3
PA4
PA2
PA7
PB0
VDD1
CF2
CF1
VSS1
P74
P75
P17
P16
P34
P35
P35
P00
P01
P02
P01
P02
P03
P04(PCCL)
P04(PCCL)
P30
P31
P31
VSS3
VDD3
P32
P33
P33
MIC_DET
9K/10K
SCK
SO1
SCK1
SO0
Si0
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
INT1
INT2
INT3
SI1
INT0
GND(
µ
-CON)
GND(A)
+12V(A)
+4V(
µ
-CON)
TAPE_SOL
HIGH_SP
TA_BIAS
PB_MUT
TA_T1/T2
REC_MUT
REC_MUT
V1/V2
AC3_SCK
AC3_SO
AC3_SIN
AC3_SS
AC3_RES
DGTL2
DGTL1
CD_O/C_SW
CD_U/D_SW
CD_DNO_SW
H/P SW
–15V
+12V(A)
GND(A)
AUTO_SCAN
VSS
VDD
FR SPEED(M)
TA MOTOR
CAM_SW
T2_CRO S
T1_CRO S
T2_B-FP S
T2_A-FP S
T2_B-FP S
T2_A-FP S
PUIN
RES(MAIN)
TA_FR SPEED
M2GND
SO
AC32SO
VOLT_SW
AD RES
SP_CONF
POWER
VR ST
VR CLK
VR DATA
FUNC B
FUNC A
S.W.MUT
CENT_MUT
REAR_MUT
SYS_MUT
TUN_MUT
CL
CE1
TUN_SD
FRNT_RLY
FAN CONT
CENT_RLY
REAR_RLY
S.W.RLY
GND(CD2)
GND(CD1)
GND(CD1)
GND(D)
+7.3V(CD)
+12V(M)
+4.6V(D)
+12V(M)
+4.6V(D)
+4V
AUX
L-CH OUT
GND(A)
R-CH OUT
L-CH OUT
GND(A)
R
C
H
OUT
VIDEO2
VIDEO1 IN
P34 2-G
TO PRE SECTION
AUX 2
AUX 1
(1/2)
8
4
1
3
2
+
–
7
(2/2)
5
6 –
+
16KHz
SPE-1
SPE-1
AMP
QS_AC
QS_MO
DO(TU)
DI(TU,VR,PR)
L
CL
CE1
MUTE
R
DRF
RES
CQCK
SQOUT
COIN
WRQ
RWC
SLD+
SLD–
OP/CL
PUIN
U/D
D2NO
RES
RWC
CFWU02
94
IC
CLK2
DO
DI
7
SP_4K
SP_1K
63Hz
SPE-2
250Hz
SPE-3
1KHz
SPE-4
4KHz
SPE-5
TAPE L
TAPE R
TUN R
TUN L
AUX 1
QS_SPRED
VOICE-C
TA_R/P
TA_PB-EQ
SD
DATA1
RESET
COM1
+12V(M)
GND(D)
GND(D)
STB
SCK1
+4.6V(D)
1
CNPF01
2
3
4
5
6
7
8
9
10
CNSD01
P40 1-C
TO DISPLAY PWB
RES
DAT
STB
STB
SCK
COM
+B
+B
+B
+B
+B
+B
+B
1
1
2
2
3
3
BIF11
CNSF11
+12V(M)
GND(CD)
+7.3V(CD)
CNP12
RWC
WRQ
COIN
SQOUT
CQCK
RES
DRF
D_GND
SLD+
SLD–
PUIN
DISC_NO
UP/DOWN
OP/CL
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
BIF12
CNSF12
P29 7-H
TO CD SERVO PWB
P29 12-C
TO CD SERVO PWB
CNP11
RF41 1K
BEAT CUT
+B
+B
+B
8
18
85
80
18
84
+B
+B
+B
+B
–B
–B
–B
+B
+B
+B
+B
1
BIF13
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
1
CNSF13
SM
SM
R-CH
L-CH
TUN MUTE
SD
GND(A)
+12V(A)
DI
CE(CE1)
DO
CL
GND(D)
CNP303
P39 12-C
TO TUNER PWB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
54
55
23
24
25
26
27
TA_T1/T2
PB_MUT
PRE L-CH
HIGH_SP
PRE R-CH
GND(A)
+12V(A)
TA_BIAS
REC L-CH
REC R-CH
TA_R/P
REC_MUT
BEAT_CUT
TA_PB-EQ
GND(D)
TA_MOT_SW
M +12V
TA_SOL
T2_A_FP
TA_CAM_SW
M_GND
T1_RUN
T2_B_FP
T2_RUN
T1_CrO
2
T2_CrO
2
P33 12-B
TO MECHA SECTION
P33 12-E
TO DECK SECTION
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
31
32
33
34
35
36
37
43
42
41
40
39
38
50
49
48
47
46
45
44
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
10 0
DEM1
DEM0
1
2
P06
P07
P05
DS_RES
CQCK
SLD–
SLD+
COIN
SQOUT
SP_16K
TUN_SM
POSISTOR
T1_RUN
SP LEVEL
SYS_STOP
SP PROT
T2_RUN
SP_250Hz
SP_63Hz
30
PA0
PA1
51
PC5
PC4
PF3
PF2
PF1
PD2
(DO)PD3
PD4
(DI)PD5
PD6
PD7
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
PF0
PD1
PD0
PC7
VSS2
VDD2
PC6
PF7
PF6
PF4
PF5
80
PL6
PL5
+B
– 31 –
CD-C491H
Figure 31 SCHEMATIC DIAGRAM (4/20)
7
8
9
10
11
12
DG08
1SS133
RF37 1K
RF38 1K
RF39 K
RF40 1K
RF44 1K
RF46 1K
RF49 1K
RF50 1K
RF36 1K
RF35 1K
RF34 1K
RF33 1K
RF32 1K
RF31 1K
RG55 1K
CG56
0.022
CG04
0.01
DG05
1SS133
RG37
1K
RG36 3.3K
QG01
KRC102M
QG03
KTC3199GR
RG32
100
ZDF01
MTZJ3R3A
RG31
1K
DG02
1SS133
DG04
1SS133
CG03
3.3/50
CG02
0.01
QG02
KTC3199GR
RG34
10K
RG30
150
RG29
150
CG01
470/10
RG35
1K
DG03
1SS133
RG33
10K
LG01
2.2
µ
H
CG57
47/25
RF48 1K
RG20 10K
RG21 10K
RG22 10K
RG22 10K
RG17
10K
RG15
10K
RG39
82
RF47 1K
RF42 1K
RF43 1K
ND(
µ
-CON)
RESET
POINT
4V(
µ
-CON)
PE_SOL
GH_SP
_BIAS
_MUT
_T1/T2
C_MUT
C_MUT
+4V
SPEED(M)
MOTOR
M_SW
CRO S
CRO S
B-FP S
A-FP S
B-FP S
A-FP S
–15V
+12V(A)
R OUT
L OUT
C IN(C OUT)
SL IN(LS OUT)
SR IN(RS OUT)
SW IN(SW OUT)
SW IN(SW OUT)
CD GND(D1)
GND(D)
CD GND(D2)
+7.3V(CD)
+12V(M)
+4.6V(D)
+4.6V(D)
LT_SW
P34 2-G,P35 9-G
TO PRE SECTION
GND(D)
VR CLK
VR DATA
VR LA TCH
VR LA TCH
FUNC A
FUNC B
NT_RLY
CONT
+4V
CONTROL
AUX 2
L-CH OUT
GND(A)
R-CH OUT
L-CH OUT
GND(A)
R-CH OUT
VIDEO2 IN
VIDEO1 IN
P34 2-G
TO PRE SECTION
AUX 2
AUX 1
P
+5V(AC32A)
CD GND(D2)
CD GND(D1)
+7.3V(CD)
GND(M)
VGND
GND(D3)
GND(D4)
GND(D4)
+5V(AC32B)
VR DI
CLK2
TAPE L
TAPE R
AUX 1
_R/P
_PB-EQ
RF41 1K
AT CUT
+B
+B
+B
+B
+B
+B
–B
RESET
1
2 3
+B
+B
+B
+B
+B
+B
+B
+B
–B
–B
28
18
19
27
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
66
69
59
60
61
62
63
18
19
64
56
57
58
54
55
47
48
49
50
51
52
53
46
3
7
POWER
VOLT SW
SP PROT
SP PROT
POSISTOR
H/P SW
SP LEVEL
FAN CONT
SP LEVEL
FAN CONT
FRNT RLY(1)
+4.6V(D)
GND(D)
SW RLY(4)
REAR RLY(3)
S-MUTE
CENT-MUTE
REAR-MUTE
SWF-MUTE
AMP CONT
+12V(A)
GND(A)
–15V
+12V(M)
GND(A)
+12V(A)
+12V(A)
IN(R)
IN(L)
RR IN
QS_SPRED
OUT(L)
OUT(R)
RL IN
C IN
RL OUT
RR OUT
RR OUT
C OUT
QS_MO
QS_AC
+B
+B
+B
+B
+B
–B
–B
+B
–B
+B
+B
+B
67
68
69
70
71
72
73
54
55
58
56
57
76
27
76
57
86
18
87
58
55
54
77
28
19
18
56
AC3-SW-CHOUT
AC3-RS-CHOUT
AC3-LS-CHOUT
AC3-LS-CHOUT
AC3-C-CH OUT
AC3-R-CH OUT
AC3-L-CH OUT
SPEC ANA
AC3-L-CH OUT
SPEC ANA
–15V
+12V
AGND
AGND
AGND
RT IN
LT IN
TUN L
TAPE L
AUX 1
AUX 2
TUN R
TAPE R
AUX 2
AUX 1
78
15
80
81
82
17
84
85
SR IN(RS OUT)
SL IN(LS OUT)
C IN(C OUT)
SW IN(SW OUT)
LT IN
RT IN
V-SW(V1/V2)
L OUT(LIN)
R OUT(RIN)
AGND
1
CFWU01
2
3
4
5
6
7
8
9
10
+B
–B
+B
1
CFWU02
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
+5V
A+12V
AGND
VGND
+5V(AC3_A)
+5V(AC3_A)
(AC3_B)
A-15V
GND(D3)
GND(D4)
GND(D4)
SO
DGTL1
SP CONF
DEM0
DEM1
SCK
AC3_RES
SI
AD RES
SS
DGTL2
FWA01
P47 8-H
TO DOLBY PWB
CFWA01
1
20
FWA02
P46 5-H
TO DOLBY PWB
CFWA02
10
1
+B
–B
AC3-C-CH OUT
AC3-L-CH OUT
AC3-R-CH OUT
AC3-LS-Ch OUT
AC3-RS-CH OUT
AC3-SW-CH OUT
76
57
56
58
55
54
P34 4-G
TO PRE SECTION
81
18
85
80
18
84
MAIN PWB-A(1/5)
FM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
P38 2-H
TO QSOUND SECTION
CENT RLY(2)
P36 1-G
TO VOLUME SECTION
P37 12-D
TO VOLUME SECTION
CD-C491H
– 32 –
Figure 32 SCHEMATIC DIAGRAM (5/20)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 22.
TAPE MECHANISM ASSEMBLY
QK14
KRC104 M
QK09
KTA1266GR
RK13
10K
CK09
0.022
RK14
10K
QK10
KRC104 M
QK11
KRC104 M
RK15
4.7K
CK01
680P
CK02
680P
RK02
1K
RK01
1K
QK13
KRC104 M
QK03
2SC1845F
RK03
2.2K
QK05
2SC1845F
RK05
3.3K
RK31
33K
CK23
0.01
RK27
8.2K
RK25
5.6K
RK23
3.9K
RK21
100K
RK19
56
CK19
560P
CK17
0.033
RK29
10K
CK25
0.0082
CK21
1/50
CK13
330P
CK11
330P
CK12
330P
CK20
560P
CK22
1/50
RK24
3.9K
RK22
100K
CK18
0.033
RK26
5.6K
RK30
10K
CK26
0.0082
RK32 33K
CK24
0.01
RK28
8.2K
RK20
56
CK3
0.02
LK0
1.8m
CK33
22/25
RK39 560
CK31 270P
CK29
470P
RK37
6.8K
RK35
6.8K
RK33
22K
CK34
22/25
CK
0.0
RK38 6.8K
CK32
270P
CK30 470P
RK36 6.8K
CK27
0.022
CK28 3.3/25
RK47
10K
RK34
68K
RK18
1K
RK17
1K
CK07 0.001
CK08 0.001
QK07
KTC3199GR
QK08
KTC3199GR
RK08
47K
RK07 47K
QK04
2SC1845F
QK06
2SC1845F
RK06
3.3K
RK04
2.2K
RK11
15K
RK12
15K
RK09
4.7K
RK10
4.7K
1
24
23
2 3
4 5
22
21
20
8
18
7
6
19
17
CK05 330P
CK06 330P
RK89
1K
RK90
1K
CK16
47/16
CK15
47/16
CK14
330P
330P
RL13
6.8K
QL12
KTA1266 GR
DRIVER
RL12
2.2K
RL14
33K
RL11
33K
QL11
KTA1266 GR
DRIVER
RL15
10K
QL14
KTA1273 Y
CL12
47/16
RL17
10(1/2W)
QL15
KTA1271 Y
DRIVER
DL12
1SS133
RL18
10K
RL20
1.2K
PHM1
M
FWM2
SWM4
REC RVS
SOLM1
SOL
SWM2
T2 CrO
2
SWM3
REC FWD
SWM6
CAM SW
SWM5
F.A.S
SWM1
T1 CrO
2
VRM1
3.3K(B)
3.3K(B)
RM1
2.7K
2.7K
RK4
560
LK0
1.8m
CL11
0.01
LK05
2.2
µ
H
LK06
2.2
µ
H
RK69
220
CK60
100/16
QL17
KRC104 M
SWITCHING
QL18
KRC104 M
QL13
KRC104 M
SWITCHING
RL16
2.2K
RL19
2.2K
TAPE MECHAMISM PWB-H
2
2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
1 1
WTL11
1
CNPK01
1
CNSK01
2
2
3
3
1
CNPK02
2
3
4
5
6
7
RECO
PLAY
REC
REC
PLAYBACK HEAD
TAPE1
HIGH=T1
–
+
+
112K
–
+
112K
–
+
+
+
PB EQ(CrO
2
)
PB EQ(CrO
2
)
PB EQ(CrO
2
)
REC
T2 CrO
2
T1 CrO
2
T2 B-FP
T2 PH-OUT
T1 RUN-SW
M-GND
T2 A-FP
MOT +B
MOT H
MOT L
+B
MM1
TAPE
MOTOR
H
L
–
+
L
H
MOT+B
M-GND
F.A.S
RUN PULSE
SOL
REC FWD
CAM SW
REC RVS
T2 CrO
2
T1 CrO
2
SOL
+B
HIGH=HI-SP
CAM SW
+B
+B
+B
+B
1
2
3
1
2
3
1
2
3
L–CH
R–CH
1
2
3
1
2
3
1
2
3
1
2
3
1
2
10
10
11
12
13
11
12
13
–
TAPE
SPEED
CNSK02
BI102
6
5
4
3
2
1
1
7
6
5
4
3
2
6
5
4
3
2
TAPE2 HEAD
PWB-G
ERASE
HEAD
R-CH
L-CH
RECORD/
PLAYBACK HEAD
PLAYBACK HEAD
TAPE2
0V
0V
0V
0V
0V
0V
0V
0V
12V
12V
12V
12V
12V
0V
4.0V
4.0V
0V
0V
0V
0V
0V
0V
0V
0V
0.7V
0.7V
0V
0V
0V
0.7V
0.7V
8.7V
8.7V
8.0V
0V
0V
0V
3.8V 3.8V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0.6V
0.6V
0.6V
0V
3.0V
1.3V
1.3V
3.0V
0.6V
0V
0V
0V
Click on the first or last page to see other CD-C491H (serv.man4) service manuals if exist.